Outrigger type support



March 2, 1948. P. FROST OUTRIGGER TYPE SUPPORT Filed July 7, 1945 v NWMN @Qm Patented Mar. 2, 1948 @FFICE OUTRIGGER, TYPE SUPPORT Lester P.Frost, United States Army, 7 Fort Belvoir, Va.

Application July '7, 1945, Serial No. 603,729

(Granted under the act of March 3, 1883, as amended April 30, 1928; 3700. G. 757) 2 Claims.

The invention described herein may be manufactured and used by or forthe Government for governmental purposes, without payment to me of anyroyalty thereon. v

This invention relates to supports and particularly supports of theoutrigger class known as pads.

It is an object of this invention to provide an outrigger type supportconstructed in a manner to be pivotally mounted to a structure.

Another object of this invention is to provide an outrigger type supportpivotally mounted to a structure and having means selectivelypositioning and locking said support in a predetermined position in thevertical plane.

Another object of this invention is to provide an outrigger type supportmounted to a structure in a manner such that it is freely pivotable inthe horizontal plane and selectively pivotable in the vertical plane.

Another object of this invention is to provide an outrigger type supporthaving a plurality of arms pivotally mounted to a structure and at leastone of said arms being selectively extensible to position a footpivotally mounted on at least one of said arms.

Another object of this invention is to provide an outrigger type support.having a swivel mounted foot connected to an arm pivotally mounted to arotatable member secured to a structure and a cooperating similar armpositioning and locking said foot due to the extensibility of itsconstruction.

A still further object of this invention is to pro vide a support of thetype described that will be simple, easy and economical in construction,and efiicient and durable in use.

The foregoing and other objects and advantages of this invention will bemore clearly understood from reading the specification in conjunctionwith the drawings, forming a part thereof, wherein:

Fig. 1 is a perspective view of the support secured to the rear of avehicle;

Fig. 2 is a side elevation of the support, parts shown in section; and

Fig. 3 is a detailed sectional view taken on line 33 of Fig. 2.

In the drawings, wherein like members are given the same referencenumeral, a bracket i is secured to any suitable structure, such as atrailer frame, material handling vehicle frame, and the like. Supportedin the bracket It is a vertical pin or shaft H which may be mountedrotatably or rigidly in the bracket I0, as illustrated in the drawings.Mounted on the shaft H are two spaced and aligned sleeves l2, [2'constructed to rotate freely around the shaft II when the shaft ismounted rigidly; and, to rotate with the shaft when it is rotatablymounted. These sleeves l2, l2 are each provided with brackets or ears M'and I4 respectively constructed to receive pivot pins l5 and I5 andretain the inner ends of the outrigger arm I6 and outrigger adjustingarm l6 pivotally' mounted thereon.

A casting I1 is provided on the outrigger support, said casting havinga-central bore l1 in which is rigidly mounted the outer end of theoutrigger arm 6. The casting I! is also provided with two sets of carsIt and I8 extending in different planes, with the sets of ears l8 and I8being provided with aligned apertures 19 and i9 respectively. Theoutrigger adjusting arm I6 is pivotally connected atits outer end to theset of ears Is on the casting I! by means of a pivot pin 33 and isextensible. Hence, when the adjusting arm i5 is extended, the casting l!is raised,

which in turn causes the inner end of the outrigger arm id to move aboutits pivot l5 for raising the outer end of arm iii. A foot 2| of anydesired shape, preferably circular, is provided with a pair of upwardlyextending spaced parallel plates 22 and 22' having a suitable number ofouter stiffener plates 23, and an inner stiffener plate 23' with theinner stiffener plate 23 formed between the parallel plates 22 and 22'to provide a rigid structure. A pivot pin 24 is mounted in aperturesformed in the parallel plates 22 and 22' in a manner such that a hangerblock 25 which is fitted between the set of ears I8 on the casting I? ispivotally supported by said pivot pin 24. The hanger block 25 has spacedparallel projections 26 extending outwardly therefrom which are providedwith aligned apertures 21 adapted to receive the pivot pin 20 providedin the set of ears IS.

The extensible arm It may be provided with any suitable means forextending and contracting it. An economical, efficient and durablemeans, however, has been provided in the form of a tightening boltassembly. This assembly requires that the arm 16 be divided andinternally threaded members 29 and 29' secured to contiguous ends of thearm l6. One of these internally threaded members 29 is provided withright hand threads and the other with left hand threads so that atightening bolt 30 having right hand threads on one end and left handthreads nally threaded members 29 and 29. A reversible 3 ratchet crank3! having a detachable handle 32 is provided on the tightening bolt 30for selectively turning the bolt to extend or contract the arm [6, andhence raise or lower the foot 2|.

The length of the internally threaded members 29 and 29' depends uponthe character of the outrigger adjusting arm l6 if the arm It werehollow, a shorter threaded member 29 could be used than if the arm weresolid.

Having thus described my invention, what I claim as new and wish tosecure by Letters Patent is:

1. An outrigger support comprising a structure, a bracket mounted onsaid structure, a vertically extending shaft mounted on said bracket,spaced and vertically aligned sleeves mounted to rotate horizontally onsaid vertical shaft, an outrigger arm, an outrigger adjusting arm in thesame vertical plane as said outrigger arm, horizontally extending pivotpins carried by said sleeves, the inner end of one of each of said armspivotally mounted on one of each of said-pins on said sleeves wherebythe outer ends of said arms may be moved vertically upward on andhorizontally with said sleeves on said vertical shaft, a foot, a castingpivotally mounted on said foot, said casting including a central boreand two sets of ears, said sets of cars extending in different planes, ahanger block fitted into one of said sets of ears, the outer end of saidoutrigger arm rigidly mounted in said central bore and the outer end ofsaid outrigger adjusting arm pivotally connected to said other set ofears, and means mounted on and adapted to selectively extend andcontract said adjusting arm for raising or lowering the outer end ofsaid outrigger arm.

2. An outrigger support comprising a structure, a bracket mounted onsaid structure, a vertically extending shaft mounted on said bracket,spaced and vertically aligned sleeves mounted to rotate horizontally onsaid vertical shaft, an outrigger arm, an outrigger adjusting arm in thesame vertical plane as said outrigger arm, horizontal pivot pins carriedby said sleeves, the inner end 4 of one of each of said arms pivotallymounted on one of each of the pins on said sleeves, whereby the outerends of said arms may be moved vertically upward on and horizontallywith said sleeves on said vertical shaft, a foot, a pair of upwardlyextending spaced parallel plates and a plurality of stiffening platesformed between said parallel plates on said foot, a casting, saidcasting including a central bore and two sets of ears extending indifierent planes, a hanger block fitted into one of said sets of ears, apivot pin extending through said parallel plates on said foot and saidhanger block, whereby said foot is pivoted to said casting, spacedparallel projections extending outwardly from said hanger block andhaving aligned apertures therein, a pivot pin fitted in saidalignedapertures and extending through one of said sets of cars on saidcasting, the outer end of said outrigger arm rigidly mounted in saidcentral bore of said casting and the outer end of said outriggeradjusting arm pivotally connected to said other set of cars, and meansincluding a tightening bolt and a reversible ratchet crank on the boltto extend or contract said outrigger adjusting arm for raising orlowering the outer end of said outrigger arm.

LESTER P. FROST.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 802,925 Ferris, Oct. 24, 19051,297,445 Christie Mar. 18, 1919 1,350,992 Downie Aug. 24, 19202,143,111 Hayes Jan. 10, 1939 2,375,264 Wagner et al May 8, 1945 FOREIGNPATENTS Number Country Date 168,181 Switzerland Mar. 31, 1934

